The invention discloses a sludge concentrating facility based on an SBR processing technology. The sludge concentrating facility comprises a precipitation tank, a mud scraping mechanism, and an aeration mechanism. The mud scraping mechanism is installed on the center of the precipitation tank through a work bridge. The aeration mechanism is installed on the bottom of the precipitation tank. The mud scraping mechanism comprises a driving device (A), a rotation main shaft, a spiral auger, and a driving device (B). The driving devices are installed on the work bridge and connected to the rotationmain shaft in a transmission mode. The spiral auger is parallel to the bottom of the precipitation tank and is connected to the rotation main shaft. The spiral auger is individually connected to thedriving device (B) for driving the self rotation of the spiral auger. The lowest end of the rotation main shaft is also connected to a mud scraping plate. The center of the bottom of the precipitationtank is provided with a mud discharging pipe that stretches out the precipitation tank. Through the mud scraping mechanism adopting the spiral auger and a cooperative supporting-mounting structure, amud scraping machine can well scrape the mud when the mud scraping machine moves along the tank bottom, the mud scraping effect is good, the mud scrapping effect is guaranteed, the energy consumptionis largely reduced, and the use performance is good.